STM32F072C8 datasheet(74/128 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F072x8 STM32F072xB

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DocID025004 Rev 5

Low-speed internal (LSI) RC oscillator

6.3.9

PLL characteristics

The parameters given in Table 45 are derived from tests performed under ambient

temperature and supply voltage conditions summarized in Table 24: General operating

conditions

6.3.10

Memory characteristics

Flash memory

The characteristics are given at TA = –40 to 105 °C unless otherwise specified.

Table 44. LSI oscillator characteristics(1)

1. VDDA = 3.3 V, TA = –40 to 105 °C unless otherwise specified.

Symbol

Parameter

Min

Typ

Max

Unit

fLSI

Frequency

kHz

tsu(LSI)(2)

2. Guaranteed by design, not tested in production.

LSI oscillator startup time

µs

IDDA(LSI)(2) LSI oscillator power consumption

0.75

1.2

µA

Table 45. PLL characteristics

Symbol

Parameter

Value

Unit

Min

Typ

Max

fPLL_IN

PLL input clock(1)

1. Take care to use the appropriate multiplier factors to obtain PLL input clock values compatible with the

range defined by fPLL_OUT.

1(2)

8.0

24(2)

MHz

PLL input clock duty cycle

40(2)

-60(2)

fPLL_OUT

PLL multiplier output clock

16(2)

-48

MHz

tLOCK

PLL lock time

200(2)

2. Guaranteed by design, not tested in production.

µs

JitterPLL

Cycle-to-cycle jitter

300(2)

Table 46. Flash memory characteristics

Symbol

Parameter

Conditions

Min

Typ

Max(1)

1. Guaranteed by design, not tested in production.

Unit

tprog

16-bit programming time TA = - 40 to +105 °C

53.5

µs

tERASE Page (2 KB) erase time

TA = - 40 to +105 °C

tME

Mass erase time

TA = - 40 to +105 °C

IDD

Supply current

Write mode

Erase mode

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